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Mirtazapine: pharmacology in relation to adverse effects
1School of Medical Sciences, University of Bristol, United Kingdom.
Abstract:
Mirtazapine is a new antidepressant that falls into the general class of receptor-blocking drugs rather than being an uptake or enzyme inhibitor. It can be described as a noradrenergic and specific serotonergic antidepressant (NaSSA). The unique pharmacology of mirtazapine means that it has a very different side effect profile from the tricyclic antidepressants, producing less alpha 1 adrenergic and muscarinic blockade, and the selective serotonin reuptake inhibitors (SSRIs) and the serotonin-noradrenaline reuptake inhibitors (SNRIs), causing much less nausea and sexual dysfunction by virtue of its blockade of 5-HT2 and 5-HT3 receptors.
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